Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 715 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
2. 2.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
3. 3.🧪 A paper bridge was tested three times. It held 250 g, 160 g and 70 g. What is the mean (average) load it held, in grams?
4. 4.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
5. 5.🧪 Why repeat a test three times? (a) to get reliable results (b) to use more paper (c) the first is wrong (d) it looks busy
6. 6.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
7. 7.🧪 A paper bridge was tested three times. It held 200 g, 130 g and 270 g. What is the mean (average) load it held, in grams?
8. 8.True or false: to record every result is poor testing. (a) True (b) False
9. 9.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
10. 10.🧪 A paper bridge was tested three times. It held 180 g, 80 g and 250 g. What is the mean (average) load it held, in grams?
11. 11.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 290 g. What is the mean (average) load it held, in grams?
12. 12.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) change only one thing (d) skip writing results
13. 13.🧪 A paper bridge was tested three times. It held 330 g, 140 g and 250 g. What is the mean (average) load it held, in grams?
14. 14.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) use the same load (d) hide a failed test
15. 15.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) record every result (d) measure the same way
17. 17.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
18. 18.🧪 A paper bridge was tested three times. It held 210 g, 130 g and 170 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 280 g, 170 g and 210 g. What is the mean (average) load it held, in grams?
20. 20.🧪 A paper bridge was tested three times. It held 290 g, 140 g and 170 g. What is the mean (average) load it held, in grams?
21. 21.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
22. 22.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the weakest? (a) design A (b) design C (c) design B
24. 24.True or false: to change only one thing is good testing. (a) False (b) True
25. 25.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
26. 26.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
27. 27.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
28. 28.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
29. 29.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) repeat each test (d) test it only once
30. 30.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) change only one thing (d) change lots at once
32. 32.🧪 A paper bridge was tested three times. It held 270 g, 250 g and 260 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 340 g, 230 g and 270 g. What is the mean (average) load it held, in grams?
34. 34.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) choose and draw one
35. 35.True or false: to use a new load each time is good testing. (a) False (b) True
36. 36.True or false: to use the same load is good testing. (a) False (b) True
37. 37.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
38. 38.🔍 Which is the odd one out? (a) record every result (b) hide a failed test (c) change lots at once (d) skip writing results
39. 39.🧪 A paper bridge was tested three times. It held 290 g, 160 g and 240 g. What is the mean (average) load it held, in grams?
40. 40.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids